Mysql 修改密碼

問題描述

[root@bogon bin]

# mysql -u root -p
enter password: 
error 1045 (28000): access denied for user 'root'@'localhost'
(using password: yes)

1、重啟mysql

[root@bogon ~]

# service mysql start
redirecting to /bin/systemctl start mysql.service
[root@bogon ~]
# cd /bin
[root@bogon bin]
# systemctl start mysql.service

[root@bogon ~]

# whereis my
my: /etc/my.cnf

[root@bogon ~]

# vim /etc/my.cnf

按下i鍵，輸入**

skip-grent-tables

輸入：wq儲存並退出

5、重啟mysql

[root@bogon ~]

# /etc/init.d/mysqld restart
shutting down mysql.
. success! 
starting mysql.
. success!

[root@bogon ~]

# mysql
welcome to the mysql monitor.  commands end with ; or \g.
your mysql connection id is 2
mysql>

mysql> use mysql;

update user set password=password(

"123456"
) where user="root"
;

error 1054 (42s22): unknown column 'password' in 'field list'

mysql> update mysql.user set authentication_string=password(

'123456'
) where user='root'
;query ok, 1 row affected, 1 warning (0.01 sec)
rows matched: 1  changed: 1  warnings: 1

mysql> flush privileges;

query ok, 0 rows affected (0.00 sec)

mysql> quit

bye

[root@bogon ~]

# mysql -u root -p
enter password: 
welcome to the mysql monitor.  commands end with ; or \g.
your mysql connection id is 3
server version: 5.7.26-log
oracle is a registered trademark of oracle corporation and/or its
affiliates. other names may be trademarks of their respective
owners.
type
'help;' or '\h'
for help.
type
'\c' to clear the current input statement.
mysql>

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